Because whenever one of them climbs to the top, the others drag it back down.
Cantaloupe
If you leave Yogurt alone for 200 years, it develops a culture.
He worked for a special branch.
Get off.
Aw man, that's a drag.
One. After that the basket won't be empty.
They're both famous for stuffing baskets!
You make me flip my lid.
He'd be scratching at the lid of his coffin yelling, "Let me out! I'm alive! Let me out!!"